10:29 <re_irc> <@ithinuel:matrix.org> Has anyone here tried to test expected compilation error?

10:29 <re_irc> I tried "compiletest_rs" (https://crates.io/crates/compiletest_rs) and found but tried "trybuild" (https://crates.io/crates/trybuild) but none seem to handle the cross compilation + nostd usecase really smoothly.

11:56 <re_irc> <@adamgreig:matrix.org> : The cortex-m-rt CI has a bunch of compilation error testing, might be a place to check

12:07 <re_irc> <@jannic:matrix.org> Ok, the low-tech variant. Just call the compiler from a shell script and check the return code. Simple and effective.

12:07 <re_irc> <@jannic:matrix.org> for ex in "${fail_examples[@]}"; do

12:07 <re_irc> ! cargo rustc --target "$TARGET" --example "$ex" -- $linker

12:07 <re_irc> done

12:07 <re_irc> ! cargo rustc --target "$TARGET" --example "$ex" --release -- $linker

17:25 <re_irc> <@halfbit:matrix.org> Is there a simple way to get defmt working with a uart?

17:25 <re_irc> <@halfbit:matrix.org> tried defmt-print -e myelf < /dev/ttyACM1

17:25 <re_irc> <@dirbaio:matrix.org> https://crates.io/crates/defmt-serial

17:26 <re_irc> <@dirbaio:matrix.org> ah yeah, that's the target side, but you still need "defmt-print" on the host side

17:27 <re_irc> <@dirbaio:matrix.org> what's the issue with defmt-print?

17:27 <re_irc> <@dirbaio:matrix.org> you want defmt to print the actual strings over uart, so it works with any serial terminal viewer?

17:27 <re_irc> <@halfbit:matrix.org> I want to take the data from a uart and print it

17:27 <re_irc> <@halfbit:matrix.org> I see defmt data coming, but it won't print on the console

17:28 <re_irc> <@halfbit:matrix.org> so... either the defmt logging is wrong on the target side, or maybe I'm missing some concoction to get the tty stream setup right on the host

17:29 <re_irc> <@dirbaio:matrix.org> what're you using to send the bytes from defmt over serial?

17:32 <re_irc> <@halfbit:matrix.org> this sample, https://github.com/imxrt-rs/imxrt-hal/blob/main/examples/rtic_logging.rs along with the defmt frontend defined here... https://github.com/imxrt-rs/imxrt-hal/blob/main/logging/src/defmt.rs

17:32 <re_irc> <@halfbit:matrix.org> yeah I guess I should just try the defmt-rtt stuff

17:36 <re_irc> <@dirbaio:matrix.org> hard to know what's wrong from a quick look

17:36 <re_irc> <@dirbaio:matrix.org> the "let _ = crate::try_write_producer(...)" thing sounds like it could lose bytes

20:03 <re_irc> <@firefrommoonlight:matrix.org> Hi! Does anyone know how to set up a Cortex-m systick interrupt? Thank yoU!

20:32 <re_irc> <@burrbull:matrix.org> : it is exception

20:47 <re_irc> <@firefrommoonlight:matrix.org> Do you have a syntax example? Thx!

20:47 <re_irc> <@dirbaio:matrix.org> "#[exception] fn SYSTICK () { ... }"

20:48 <re_irc> <@dirbaio:matrix.org> * SysTick

20:48 <re_irc> <@dirbaio:matrix.org> documented here https://docs.rs/cortex-m-rt/latest/cortex_m_rt/attr.exception.html

20:49 <re_irc> <@firefrommoonlight:matrix.org> Perf

20:53 <re_irc> <@firefrommoonlight:matrix.org> Is there a way to make that work with RTIC? I've tried this, but neither fire. Maybe some type of unmasking?

20:53 <re_irc> /// Systick time keeper, since program start, in ms. Could alternatively use the RTC instead.

20:53 <re_irc> /// Lowest priority.

20:53 <re_irc> fn systick_isr(_cx: systick_isr::Context) {

20:53 <re_irc> #[task(binds = SysTick, priority = 1)]

20:53 <re_irc> println!("TICK");

20:53 <re_irc> TIME_SINCE_START_MS.fetch_add(1, Ordering::Relaxed);

20:53 <re_irc> }

20:54 <re_irc> #[exception]

20:54 <re_irc> fn SysTick() {

20:54 <re_irc> println!("tick");

20:54 <re_irc> }

20:54 <re_irc> <@firefrommoonlight:matrix.org> Neither seems to fire

20:55 <re_irc> <@9names:matrix.org> Have you looked at https://github.com/rtic-rs/systick-monotonic?

20:57 <re_irc> <@firefrommoonlight:matrix.org> No; thx; will check out

20:58 <re_irc> <@firefrommoonlight:matrix.org> Was hoping to have a normal interrupt instead of monotonic, but if that's the way, I'll do it

20:58 <re_irc> <@firefrommoonlight:matrix.org> Or just use the RTC (no i) instead to get timestamps...

20:59 <re_irc> <@firefrommoonlight:matrix.org> (I am logging parameters @ around 1khz, then updating a model fitting them; need timestamps to weight reading time etc prioritizing new readings)

21:00 <re_irc> <@firefrommoonlight:matrix.org> Or could use a hardware timer since that's a MCU periph so will work with normal interrupts (RTIC tasks)